6979849920 has 448 divisors, whose sum is σ = 25840944000. Its totient is φ = 1771241472.

The previous prime is 6979849901. The next prime is 6979849931. The reversal of 6979849920 is 299489796.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22299684 + ... + 22299996.

Almost surely, 2^6979849920 is an apocalyptic number.

6979849920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6979849920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12920472000).

6979849920 is an abundant number, since it is smaller than the sum of its proper divisors (18861094080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6979849920 is a wasteful number, since it uses less digits than its factorization.

6979849920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The square root of 6979849920 is about 83545.4961084079. The cubic root of 6979849920 is about 1911.0939084244.

The spelling of 6979849920 in words is "six billion, nine hundred seventy-nine million, eight hundred forty-nine thousand, nine hundred twenty".